Eilis is a distinctive girls' name in United States, ranking #16499 in 2003 with 5 recorded births. This places Eilis in the bottom 11% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2018 with 20 births ranking #6090. Since 1996, the popularity has decreased by 58.3%. In 2003, approximately 1 in every 365,410 girls born was named Eilis. FALLING Recent data shows the name is currently falling.